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https://issues.apache.org/jira/browse/MAPREDUCE-5485?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14981424#comment-14981424
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Hadoop QA commented on MAPREDUCE-5485:
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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 0m 7s 
{color} | {color:blue} docker + precommit patch detected. {color} |
| {color:green}+1{color} | {color:green} @author {color} | {color:green} 0m 0s 
{color} | {color:green} The patch does not contain any @author tags. {color} |
| {color:red}-1{color} | {color:red} test4tests {color} | {color:red} 0m 0s 
{color} | {color:red} The patch doesn't appear to include any new or modified 
tests. Please justify why no new tests are needed for this patch. Also please 
list what manual steps were performed to verify this patch. {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 3m 
5s {color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 2m 14s 
{color} | {color:green} trunk passed with JDK v1.8.0_60 {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 2m 14s 
{color} | {color:green} trunk passed with JDK v1.7.0_79 {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m 
19s {color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 
26s {color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 1m 
44s {color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 35s 
{color} | {color:green} trunk passed with JDK v1.8.0_60 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 40s 
{color} | {color:green} trunk passed with JDK v1.7.0_79 {color} |
| {color:red}-1{color} | {color:red} mvninstall {color} | {color:red} 0m 14s 
{color} | {color:red} hadoop-mapreduce-client-app in the patch failed. {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 2m 14s 
{color} | {color:green} the patch passed with JDK v1.8.0_60 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 2m 14s 
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 2m 16s 
{color} | {color:green} the patch passed with JDK v1.7.0_79 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 2m 16s 
{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red} 0m 18s 
{color} | {color:red} Patch generated 6 new checkstyle issues in 
hadoop-mapreduce-project/hadoop-mapreduce-client (total was 648, now 649). 
{color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 
27s {color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} whitespace {color} | {color:red} 0m 0s 
{color} | {color:red} The patch has 4 line(s) that end in whitespace. Use git 
apply --whitespace=fix. {color} |
| {color:green}+1{color} | {color:green} xml {color} | {color:green} 0m 1s 
{color} | {color:green} The patch has no ill-formed XML file. {color} |
| {color:red}-1{color} | {color:red} findbugs {color} | {color:red} 1m 16s 
{color} | {color:red} 
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core 
introduced 2 new FindBugs issues. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 35s 
{color} | {color:green} the patch passed with JDK v1.8.0_60 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 43s 
{color} | {color:green} the patch passed with JDK v1.7.0_79 {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 9m 26s {color} 
| {color:red} hadoop-mapreduce-client-app in the patch failed with JDK 
v1.8.0_60. {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 1m 32s {color} 
| {color:red} hadoop-mapreduce-client-core in the patch failed with JDK 
v1.8.0_60. {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 10m 4s {color} 
| {color:red} hadoop-mapreduce-client-app in the patch failed with JDK 
v1.7.0_79. {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 1m 54s {color} 
| {color:red} hadoop-mapreduce-client-core in the patch failed with JDK 
v1.7.0_79. {color} |
| {color:red}-1{color} | {color:red} asflicense {color} | {color:red} 0m 20s 
{color} | {color:red} Patch generated 1 ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black} 45m 7s {color} | 
{color:black} {color} |
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|| Reason || Tests ||
| FindBugs | 
module:hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core
 |
|  |  
org.apache.hadoop.mapred.FileOutputCommitter.isCommitJobRepeatable(JobContext) 
doesn't override method in superclass because parameter type 
org.apache.hadoop.mapred.JobContext doesn't match superclass parameter type 
org.apache.hadoop.mapreduce.JobContext  At FileOutputCommitter.java:superclass 
because parameter type org.apache.hadoop.mapred.JobContext doesn't match 
superclass parameter type org.apache.hadoop.mapreduce.JobContext  At 
FileOutputCommitter.java:[line 194] |
|  |  
org.apache.hadoop.mapred.OutputCommitter.isCommitJobRepeatable(JobContext) 
doesn't override method in superclass because parameter type 
org.apache.hadoop.mapred.JobContext doesn't match superclass parameter type 
org.apache.hadoop.mapreduce.JobContext  At OutputCommitter.java:superclass 
because parameter type org.apache.hadoop.mapred.JobContext doesn't match 
superclass parameter type org.apache.hadoop.mapreduce.JobContext  At 
OutputCommitter.java:[line 224] |
| JDK v1.7.0_79 Failed junit tests | 
hadoop.mapreduce.jobhistory.TestJobHistoryEventHandler |
|   | hadoop.mapreduce.filecache.TestClientDistributedCacheManager |
|   | hadoop.mapreduce.jobhistory.TestJobHistoryEventHandler |
|   | hadoop.mapreduce.filecache.TestClientDistributedCacheManager |
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|| Subsystem || Report/Notes ||
| Docker | Client=1.7.1 Server=1.7.1 
Image:test-patch-base-hadoop-date2015-10-29 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12769599/MAPREDUCE-5485-demo-2.patch
 |
| JIRA Issue | MAPREDUCE-5485 |
| Optional Tests |  asflicense  javac  javadoc  mvninstall  unit  findbugs  
checkstyle  compile  xml  |
| uname | Linux cc2d6c263958 3.13.0-36-lowlatency #63-Ubuntu SMP PREEMPT Wed 
Sep 3 21:56:12 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | 
/home/jenkins/jenkins-slave/workspace/PreCommit-MAPREDUCE-Build@2/patchprocess/apache-yetus-c3a2069/precommit/personality/hadoop.sh
 |
| git revision | trunk / 58d1df5 |
| Default Java | 1.7.0_79 |
| Multi-JDK versions |  /usr/lib/jvm/java-8-oracle:1.8.0_60 
/usr/lib/jvm/java-7-openjdk-amd64:1.7.0_79 |
| findbugs | v3.0.0 |
| mvninstall | 
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/6100/artifact/patchprocess/patch-mvninstall-hadoop-mapreduce-project_hadoop-mapreduce-client_hadoop-mapreduce-client-app.txt
 |
| checkstyle | 
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/6100/artifact/patchprocess/diff-checkstyle-hadoop-mapreduce-project_hadoop-mapreduce-client.txt
 |
| whitespace | 
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/6100/artifact/patchprocess/whitespace-eol.txt
 |
| findbugs | 
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/6100/artifact/patchprocess/new-findbugs-hadoop-mapreduce-project_hadoop-mapreduce-client_hadoop-mapreduce-client-core.html
 |
| unit | 
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/6100/artifact/patchprocess/patch-unit-hadoop-mapreduce-project_hadoop-mapreduce-client_hadoop-mapreduce-client-app-jdk1.8.0_60.txt
 |
| unit | 
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/6100/artifact/patchprocess/patch-unit-hadoop-mapreduce-project_hadoop-mapreduce-client_hadoop-mapreduce-client-core-jdk1.8.0_60.txt
 |
| unit | 
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/6100/artifact/patchprocess/patch-unit-hadoop-mapreduce-project_hadoop-mapreduce-client_hadoop-mapreduce-client-app-jdk1.7.0_79.txt
 |
| unit | 
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/6100/artifact/patchprocess/patch-unit-hadoop-mapreduce-project_hadoop-mapreduce-client_hadoop-mapreduce-client-core-jdk1.7.0_79.txt
 |
| unit test logs |  
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/6100/artifact/patchprocess/patch-unit-hadoop-mapreduce-project_hadoop-mapreduce-client_hadoop-mapreduce-client-app-jdk1.8.0_60.txt
 
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/6100/artifact/patchprocess/patch-unit-hadoop-mapreduce-project_hadoop-mapreduce-client_hadoop-mapreduce-client-core-jdk1.8.0_60.txt
 
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/6100/artifact/patchprocess/patch-unit-hadoop-mapreduce-project_hadoop-mapreduce-client_hadoop-mapreduce-client-app-jdk1.7.0_79.txt
 
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/6100/artifact/patchprocess/patch-unit-hadoop-mapreduce-project_hadoop-mapreduce-client_hadoop-mapreduce-client-core-jdk1.7.0_79.txt
 |
| JDK v1.7.0_79  Test Results | 
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/6100/testReport/ |
| asflicense | 
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/6100/artifact/patchprocess/patch-asflicense-problems.txt
 |
| modules | C: 
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app 
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core 
U: hadoop-mapreduce-project/hadoop-mapreduce-client |
| Max memory used | 225MB |
| Powered by | Apache Yetus   http://yetus.apache.org |
| Console output | 
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/6100/console |


This message was automatically generated.



> Allow repeating job commit by extending OutputCommitter API
> -----------------------------------------------------------
>
>                 Key: MAPREDUCE-5485
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-5485
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>    Affects Versions: 2.1.0-beta
>            Reporter: Nemon Lou
>            Assignee: Junping Du
>         Attachments: MAPREDUCE-5485-demo-2.patch, MAPREDUCE-5485-demo.patch
>
>
> There are chances MRAppMaster crush during job committing,or NodeManager 
> restart cause the committing AM exit due to container expire.In these cases 
> ,the job will fail.
> However,some jobs can redo commit so failing the job becomes unnecessary.
> Let clients tell AM to allow redo commit or not is a better choice.
> This idea comes from Jason Lowe's comments in MAPREDUCE-4819 



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